Objective:To determine toxicity and safety margins of trichlorofon in different species as trichlorofon toxicity has a large variation in the susceptibility of different species.Methods:In this research,four viviparou...Objective:To determine toxicity and safety margins of trichlorofon in different species as trichlorofon toxicity has a large variation in the susceptibility of different species.Methods:In this research,four viviparous aquarium fish were exposed to trichlorofon for 96 h.LC_(50)of 24 h,48 h,72 h and 96 h were attained by probit analysis software SPSS Version 16.Fish samples were exposed to different concentrations of trichlorofon(5,10,20 and 40 mg/L)for 96 h and mortality were recorded,separately.Results:The 96 h LC_(50)of Poecilia latipinna,Poecilia reticulata a,Gambusia holbrooki and Xiphophorus helleri were 9.80,9.80,9.95 and 7.99 mg/L,respectively.Conclusions:According to the results of this research,LC_(50)values indicated Xiphophorus helleri was the most resistant and Gambusia holbrooki,with a few differences,was the most sensitive species compared with the fishes examined.展开更多
基金Supported by the Gorgan University of Agriculture Science and Natural Resource(Grant No.6177515-5).
文摘Objective:To determine toxicity and safety margins of trichlorofon in different species as trichlorofon toxicity has a large variation in the susceptibility of different species.Methods:In this research,four viviparous aquarium fish were exposed to trichlorofon for 96 h.LC_(50)of 24 h,48 h,72 h and 96 h were attained by probit analysis software SPSS Version 16.Fish samples were exposed to different concentrations of trichlorofon(5,10,20 and 40 mg/L)for 96 h and mortality were recorded,separately.Results:The 96 h LC_(50)of Poecilia latipinna,Poecilia reticulata a,Gambusia holbrooki and Xiphophorus helleri were 9.80,9.80,9.95 and 7.99 mg/L,respectively.Conclusions:According to the results of this research,LC_(50)values indicated Xiphophorus helleri was the most resistant and Gambusia holbrooki,with a few differences,was the most sensitive species compared with the fishes examined.
